Shuttle



Jan. 26 ,1926. 1,571,149

\ W. l. STIMPSON ET AL l SHUTTLE Filed August 24, 1925 Patented Jan. 26, 1926.

UNITED STATES WALLACE STIMPSON AND HARRY A. DAVIS, OE HOPEDALE, `MIASSACHUSETTS, AS- SIGNORS T0 DRAPER CORPORATION, 0F HOPEDALE, MASSACHUSETTS, A CORPORA- TION 0F MAINE.

SHUTTLE.

Application sled August 24, 1925. serial No. 51,952. y

To all 'whom t may concern Be it known that we, WALLACE I. S'rrMrson and HARRY A. Davis, citizens of the United States', residing at Hopedale, in the county of Worcester and State of Hassachusetts, have invented an Improvement in Shuttles, of which the following description, bl d in connection with the accompanying drawings, is a speciication, like. characters on the drawings representing like part's.

This invention relates to loom shuttles and more particularly to the bobbin holding end of loom shuttles of the filling replenishing type.

It is now the common practice in filling replenishing shuttles to provide bobbin holding jaws for detachable engagement with the filling carrier or bobbin and to associate with the. jaws-a bobbin guide for guiding the bobbin into position between the a During replenishment of filling, the incoming Ifilling carrier is utilized to throw out the filling carrier previously in the shuttle, and during this operation much strain is placed upon the parts comprising the bobbin holding end of the shuttle, and such parts frequently become loose or detached,

- or they may become broken, especially do the'springl jaws themselves become broken near the, bobbin holding portions, during transfer. 1

yOne. of the objects of the present invention is to provide improved means for holding the parts at the bobbinj holding end of` the Ishuttle in their mutually assembled relation and to thereafter insure perma- Ifrency of the relation between the parts, that they may not be disturbed during weaving operations. Heretofore it has been the common practice to provide bobbin holding jaws with a shank portion bent upon itself, but relatively short in length, and to secure the shank portion to the shuttle body by a transverse bolt, and likewise, it has been common heretofore to provide a bobbinguide between the jaws, held tothe shuttle by a wood screw. The present invention 'overcomes the manifest defects of such construction and secures permancncy in the relation of parts once they have been properly assembled. i The invention will best/be made clear by plenishing type with the parts disassem- Fig. 2 is a longitudinalv section of the bobbin holding end vof the shuttle, showing the. parts assembled in accordance with the present invention;

Fig. 3 is a plan view of a shuttle containing the present invention;

Fig. 4 is a. longitudinal sectional view of a modification; and

Fig. 5 is a transverse section on the line 5 5 of Fig. 2.

The shuttle comprises the body portion `1 having the usual bobbin chamber 2 and provided at one end with a shank receiving chamber 3. The chamber 3 is cut into the wood of the shuttle and the upper portion thereof is enlarged or widened (as at 4) thereby forming a 'shelf or shoulder 5 in the shuttle wood at the top of thel shank receiving chamber. At the bottom of the shank receiving chamber 5, the body of the shuttle is formed with a cut out portion 6 of a 'size to receive the bottom plate of the I bobbin'guide, as will later appear.

The bobbin holder comprises the shank portion 7 which is bent upon itself or rounded at 8, and from the shank portion extend the bobbin holding jaws 9 and 10, each of which may be provided with the. usual bobl bin holding grooves 11 and the usual. bevelled upper portion 12 for the more ready entrance of the bobbin holding rings into the grooves of the bobbin holding jaws.

W'here the shank portion of the bobbin holder is bent, afs hereinbefore described, it is preferred that a filler piece be inserted between the side portions of the shank to maintain the side portions of the shank in proper'supported relation, and as shown in the present instance, the filler 13 extends frontwardly and has an inclined Portion 14 which extends between the bobbin holding jaws into position to engage the under side of the bobbin guide, as will appear.

The bobbin guide comprises the top plate i 15,and bottom plate 16 between which-eX- tends theinclined bobbin guiding port-ion 17,'and the bottom plate 16 is preferably widened (as at 18) to provide a rest4 for the lower ed es of the bobbin holdin jaws.

maybe assembled with the shank prior to' its insertion in the shank chamber, or afterward, if preferred. When the bobbin has been assembled in the'shuttle as described, the bobbin guide is moved to place, at which time the top plate 15 of the bobbin guide rests upoii the top of the shank portion 7 of'the bobbin holder, while the under or bottom plate 16 rests against the lower surface of the shank 7.

As will be noted in Fig. 1, the top and bottom plates of the bobbin guide are wider than the like dimension of the shank 7 of the bobbinholder, with the result that the top plate 15 not only rests upon the top of the shank ortion 7 but overlies the shoulder 5 formed 1n the shuttle wood, as hereinbefore described. Similarly, the bottom plate 16 when moved to place, enters the groove 6 formed in the shuttle Wood, and conselllently, the bottom. late not onlyrests upon e lower surface o `the shank 7, but also is contained within the groove 6 of the shuttle wood.

In order .that the ,parts thus assembled ma be rigidly and permanently secured toget er as a unit, the present invention conpasses through tom plate 16 of the bobbin gui e, and the parts thus assembled are clamped together as a unit bymeans ofk avnut v22, the result being that when the nutl 22, or similar vsev curing. means, is tightened on the threaded plate .ofthe bobbin guide are clamped to" end of the bolt the top plate and bottom the shank 7 of the bobbin holder, without de endence upon the wood of the shuttle for ho ding the bobbin guide in posit-ion as heretofore. l

When the filler 13 is employed,the clamping bolt will be passed through the opening Y 21 formed between the end of the filler and -In oleefthat the damping boa 2o ,may

register with .the openin 1n the top. and 'bottom plates of the bob inl guide and the opening through the shank of the 'bobbin resting against'the top ad`bottom o `the holder when the parts are assembled, the

or through bolt 20.

top and bottom plates may be provided with vertically aligned registering openings 23 and 24, the result bein that the top and bottom plates of the bolli shank ofthe bobbin holder are clam d together as a unit by the clamping bo t, and the top and bottom piates also bear upon the wood of the shuttle at the sides of the shank 7, which serves to give stabilit and insure proper relation of the parts uring subsequent weaving.

bin guide and then The shank of the bobbin holder has a transverse opening 25 through which passes the transverse bolt 26, and where the filler 13 is employed, suchfiller is`also held in place by the transverse bolt 26.

The shank portion 7 of the bobbin holder from the point 8 to the outward 'larin bend of the bobbin holding jaws, is muc longer than usual, with the result that the shank has increased bearingfin the wood of the shuttle, and amore satisfactory support cases the location of the clamping or throughv bolt at the end of the shank of the bobbin holder is preferred. In feither case, however', the through bolt 4and its clamping* means, such as the nut 22, serve to clamp and hold together as a unit the top and bottom plates ofthe bobbin guide and the shank. 4

of the ybobbin holder, and where the top and bottom plates of the bobbin guide are wider than the like'dimensio'n of the shank of the bobbin holder, the clamping or through bolt serves to draw these parts closely against the shuttle wood.

It will be noted that the, nut or bolt clam ing means 22 does not bear against the Woo of the shuttle in order tocl'amp the bobbin guide and bobbin holder together, but bears directly against the plate of the bobbinv guide, the bottom plate in the illustrated form of the invention, andthe wood lofv the shuttle is cut awayj to provide a recess ffor the entrance. of the nut 22.v

Where the filler 13 is of the type herein- .before described, and Aas shown 1n Fig. 1, the inclined end portion let'thereof serves as a support for the inclined bobbin guide by ngatging its unllerl surfa, butl such cons ruc ion ma no Ya wa s n 1. A. shuttle having, in combination, a

body portion, a bobbin holder'comprising'a` lll shank portion and spring jaws, -a^`bob guide having a top plate and a bottom late portion of the bobbin holding jaws, the head of said bolt 'bearing upon one of said plates and securing means on the opposite end of. the bolt bearing directly upon' the other of Said means for directly clamping said metal f parts together as a unit without dependence upon the wood of the shuttle.

2. A shuttle having, in combination, a body portion, a bobbin holder' comprising a shank yportion bent to form sprung jaws, a bobbin guide having a top and bottom plate 4embracing the shank portion ofthe bobbin holder, a through bolt passing through the top and bottom plates of the guide and through the shank portion of the jaws, the head of the bolt bearing uponfone of said plates and a nut on the other end of the bolt bearing directly upon the other of said plates for directly clamping the metal parts together as a unit.

v3. A shuttle having, in combination, a body portion, a bobbin holder comprising a shank bent to form bobbin holding jaws, a bobbin guide having a top and a bottom plate inclosing said shank, a through bolt which passes through the top and bottom plates and through the shank of the bobbin holder, the head of the bolt bearing upon one of said plates and securing means for the opposite end of the bolt bearing directly upon the other of said plates for clamping the metal parts to ether, and a transverse bolt passing throng the shank.

4. Ashuttle having, in combination, a body portion'provided with a shank receiving chamber, a bobbin holder com rising a shank seated in said chamber an bent to form projecting spring jaws, a' bobbin guide body portion, av bobbin holder comprising a shank portion bent to form spring jaws, a filler block in the shank portion forming with the bend of the shank a through bolt opening at the bend of the shank, a bobbin guide havlng a top late and a bottom plate seated on the shan and a clamping bolt passing through the top plate, the bolt openmg at the end of the shank, and the bottom plate and havin a head bearing upon one of said plates an a nut atr its opposite end bearing directly upon the other of said plates for clamping said parts together.

6. A shuttle having, 1n combination, a body portion provided with a shank receiving chamber, a bobbin holder comprising a shank seated in said chamber and bent to form projecting spring jaws, a bobbin guide having a top plate and a bottom plate em-v bracing the shank and overlying the adjacent wood of the shuttle, a clamping bolt passing through the top plate, shank, and

, ottom plate for clam ing said parts together and the to and ottom lates to the shuttle Wood, an Ya transverse 1t passing through the shank and holding the parts, to the shuttle.

7. An automatically threading loom shuttle, lhaving a shank receiving chamber, a, bobbin holder comprisin a shank 'and bobbin holding` jaws, sai shank having a through bolt openin at its closed end and a vertical through olt extending through said opening and bearing upon' the closed end ol? the shank to prevent endwise displacement of the bobbin holder in the shank receiving chamber. t

8. An automatically .threading loom shuttle, havin ashank receiving chamber,- a' bobbin ho der comprising a shank and bobbin holding jaws, saidl shank having a throughbolt opening at its closed end, andI a',

vertical through bolt extending throughsaid o ening and bearing upon the closed end of t e shank to prevent endwise .displacement of the bobbin holder in the shank receiving chamber.v Y

In testimony whereof, we have signed 'our names to this specification.

`WALLACE 1. sTiMrsoN. HARRY-A. Davis. j j 

